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SubjectRe: [PATCH 10/11] ahci: Export generic AHCI symbols, turn libahci into a separate module
On Wed, Mar 03, 2010 at 09:08:34PM +0300, Anton Vorontsov wrote:
> On Wed, Mar 03, 2010 at 08:53:30PM +0300, Sergei Shtylyov wrote:
> [...]
> > >diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
> > >index 01c52c4..365a9da 100644
> > >--- a/drivers/ata/Kconfig
> > >+++ b/drivers/ata/Kconfig
> > >@@ -59,12 +59,18 @@ config SATA_PMP
> > > config SATA_AHCI
> > > tristate "AHCI SATA support"
> > >- depends on PCI
> > > help
> > > This option enables support for AHCI Serial ATA.
> > > If unsure, say N.
> > >+config SATA_AHCI_PCI
> > >+ tristate "PCI AHCI SATA support"
> > >+ depends on SATA_AHCI && PCI
> >
> > Perhaps it's worth to turn that into select SATA_AHCI and make
> > SATA_AHCI invisible to users instead, so that each particular AHCI
> > implementation could select it.
>
> No, we must maintain old .config's semantics. SATA_AHCI is already
> visible to the users, and if we remove it, we'll break
> 'make oldconfig'.
>
> > >+ default y
> >
> > Why force the default "y" if the predecessor option SATA_AHCI
> > didn't do it?
>
> For the same reason, to keep old .configs working.

OTOH, we can introduce invisible SATA_LIBAHCI, which is better,
I think.


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